summaryrefslogtreecommitdiff
path: root/Documentation/nommu-mmap.txt
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@s-opensource.com>2017-05-16 15:54:22 +0300
committerJonathan Corbet <corbet@lwn.net>2017-07-14 22:57:55 +0300
commit853afb719f6e4f3e8387390999717ca2b91862e5 (patch)
tree0ed85e0c944a9861bb224ed4899c4103a6ab416c /Documentation/nommu-mmap.txt
parentc49e51a531bc01469cd083a71f495171e4a3d067 (diff)
downloadlinux-853afb719f6e4f3e8387390999717ca2b91862e5.tar.xz
nommu-mmap.txt: don't use all upper case on titles
This file is almost in the standard format we're adopting for other documentation text files. Yet, it use upper case on titles. So, in order to uniform how chapter names, adjust caps on titles. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/nommu-mmap.txt')
-rw-r--r--Documentation/nommu-mmap.txt18
1 files changed, 9 insertions, 9 deletions
diff --git a/Documentation/nommu-mmap.txt b/Documentation/nommu-mmap.txt
index 39a62ab0f50a..69556f0d494b 100644
--- a/Documentation/nommu-mmap.txt
+++ b/Documentation/nommu-mmap.txt
@@ -1,5 +1,5 @@
=============================
-NO-MMU MEMORY MAPPING SUPPORT
+No-MMU memory mapping support
=============================
The kernel has limited support for memory mapping under no-MMU conditions, such
@@ -105,7 +105,7 @@ and it's also much more restricted in the latter case:
provide any such support, then the mapping request will be denied.
-FURTHER NOTES ON NO-MMU MMAP
+Further notes on no-MMU MMAP
============================
(#) A request for a private mapping of a file may return a buffer that is not
@@ -160,7 +160,7 @@ FURTHER NOTES ON NO-MMU MMAP
with character device files, pipes, fifos and sockets.
-INTERPROCESS SHARED MEMORY
+Interprocess shared memory
==========================
Both SYSV IPC SHM shared memory and POSIX shared memory is supported in NOMMU
@@ -168,7 +168,7 @@ mode. The former through the usual mechanism, the latter through files created
on ramfs or tmpfs mounts.
-FUTEXES
+Futexes
=======
Futexes are supported in NOMMU mode if the arch supports them. An error will
@@ -177,7 +177,7 @@ mappings made by a process or if the mapping in which the address lies does not
support futexes (such as an I/O chardev mapping).
-NO-MMU MREMAP
+No-MMU mremap
=============
The mremap() function is partially supported. It may change the size of a
@@ -199,7 +199,7 @@ act on a complete mapping.
.. [#] Not currently supported.
-PROVIDING SHAREABLE CHARACTER DEVICE SUPPORT
+Providing shareable character device support
============================================
To provide shareable character device support, a driver must provide a
@@ -244,7 +244,7 @@ copy mapped otherwise.
circumstances!
-PROVIDING SHAREABLE MEMORY-BACKED FILE SUPPORT
+Providing shareable memory-backed file support
==============================================
Provision of shared mappings on memory backed files is similar to the provision
@@ -261,7 +261,7 @@ Memory backed devices are indicated by the mapping's backing device info having
the memory_backed flag set.
-PROVIDING SHAREABLE BLOCK DEVICE SUPPORT
+Providing shareable block device support
========================================
Provision of shared mappings on block device files is exactly the same as for
@@ -269,7 +269,7 @@ character devices. If there isn't a real device underneath, then the driver
should allocate sufficient contiguous memory to honour any supported mapping.
-ADJUSTING PAGE TRIMMING BEHAVIOUR
+Adjusting page trimming behaviour
=================================
NOMMU mmap automatically rounds up to the nearest power-of-2 number of pages